Optics: measuring and testing – By shade or color – Fluid color transmission examination
Patent
1983-12-14
1987-01-20
Evans, F. L.
Optics: measuring and testing
By shade or color
Fluid color transmission examination
250227, 356408, 356436, 356440, G01N 2185
Patent
active
046377298
ABSTRACT:
Light in two different wavelengths, only one of which is attenuated by the presence of a substance to be tested for, is passed through a light path which includes a fluid path. The two wavelengths are equally attenuated by particulate contamination and all other conditions except for the presence of the tested for substance. A light path through a reference cell provides a reference for each wavelength. The presence of the tested for substance provides a differential attenuation which is indicative of the presence of the substance and the degree of differential attenuation is a measure of the concentration of the substance.
REFERENCES:
patent: 3733130 (1973-05-01), Young
patent: 3740155 (1973-06-01), Keller et al.
patent: 3843226 (1974-10-01), Person
patent: 3853407 (1974-12-01), Dewey, Jr.
patent: 4001595 (1977-01-01), Reisman
patent: 4092069 (1978-05-01), Fukuda et al.
patent: 4152075 (1979-05-01), Rellstab et al.
patent: 4176963 (1979-12-01), Fabinski et al.
patent: 4248536 (1981-02-01), Hijikata
patent: 4498781 (1985-02-01), Kaplit
patent: 4505583 (1985-03-01), Konomi
patent: 4523096 (1985-06-01), Yasuda et al.
Levine et al., IBM Technical Disclosure Bulletin, vol. 18, No. 11 Apr. 1976, p. 3754.
Machine Design Article.
Takeo et al., Article in Japanese Journel of Applied Physics 10/82, vol. #21, No. 10, pp. 1509-1512.
Wilks, Jr., Article-Industrial Research & Development 9/82, pp. 132-135.
Carrier Corporation
Evans F. L.
Harringa Joel L.
Zobkiw David J.
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